Physics (NTSE Stage-1 (State-Level) Scholastic-Aptitude & Language Comprehension): Questions 41 - 47 of 136

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Question number: 41

» Physics » Magnetism & Electricity at Work

MCQ▾

Question

Hysteresis loss for steel is……that for iron.

Choices

Choice (4) Response

a.

greater than

b.

equal to

c.

less than

d.

None of the above

Question number: 42

» Physics » Motion and Force

MCQ▾

Question

The intensity of the Earth’s gravitational field is maximum at

Choices

Choice (4) Response

a.

the equator

b.

the pole

c.

the center of the Earth

d.

None of the above

Question number: 43

» Physics » Magnetism & Electricity at Work

MCQ▾

Question

A plane mirror reflects a pencil of light to form a real image. Then, the pencil of light incident on the mirror is

Choices

Choice (4) Response

a.

convergent

b.

divergent

c.

parallel

d.

Question does not provide sufficient data or is vague

Question number: 44

» Physics » Motion and Force

MCQ▾

Question

A magnet is placed in iron powder and then taken out, and then maximum iron powder is at

Choices

Choice (4) Response

a.

some distance away from the North pole

b.

some distance away from the South pole

c.

the end of the magnet

d.

the middle of the magnet

Question number: 45

» Physics » Motion and Force

MCQ▾

Question

If the current is flowing clockwise in a circular coil, the direction of magnetic lines of force inside the coil is

Choices

Choice (4) Response

a.

towards you

b.

away from you

c.

towards the center along the radius

d.

away from the center along the radius

Question number: 46

» Physics » Sound

MCQ▾

Question

SONAR is based on the principle of

Choices

Choice (4) Response

a.

vibration

b.

echo

c.

resonance

d.

All of the above

Question number: 47

» Physics » Magnetism & Electricity at Work

MCQ▾

Question

A magnetic needle kept in a non-uniform magnetic field experiences

Choices

Choice (4) Response

a.

a torque but not a force

b.

a force and torque

c.

Neither a torque nor a force

d.

a force but not a torque

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